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(No Model.)

WITNESSES:

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WIRE 'STRAIGHTENING MACHINE.

Patented Apr. 16; 1895.

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(No Model.) 3 Sheets-Sheet 2.

O. F. SMITH.

WIRE STRAIGHTENING MACHINE. No. 537,652. Patented Apr. 16, 1895.

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(No Model.) 3 Shets-Sheet 3.

C. P. SMITH. WIRE STRAIGHTENING MACHINE.

No. 537,652. Patented Apr. 16, 1895.

WITNESSES INVENTOR UNITED STATES PATENT OFFI E,

CHARLES F. SMITII, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SMITH doEGGE MANUFACTURING COMPANY, OF SAME PLACE.

WIRE-STRAIGHTENING MACHINE.

SPECIFICATION forming part of Letters Patent No. 537,652, dated April16, 1 895.

Application filed February 13. 1895. Serial No. 3 N m l-l To call whomit may concern.-

Be it known that I, CHARLES F. SMITH, a citizen of the United States,residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements inWire-Straighteners; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates tocertain new and useful improvements in wirestraighteners and has for its object to provide an efficient device ofthis description which shall be readily adjustable for use and positivein its action.

In the accompanying drawings, which form a part of this application,Figure l is a plan view of my improvement; Fig. 2, a section at the linew 00 of Fig. 1; Fig. 3, a section at the line y y of Fig. 1; Fig. 4, adetail perspective of one of the pivoted adjustable jaws, and. Fig. 5 adetail perspective of the cam-bar.

Similar numbers of reference denote like parts in the several figures ofthe drawings.

My improved Wire straightener comprises two duplicate sets ofstraightening rolls, the rolls of one set being arranged at right anglesto the corresponding rolls of the other set. All of the parts of thesetwo sets are precisely alike and are operated. in the same manner, and Iwill therefore describe only one of these sets. It will of course beunderstood that these two sets are necessary in order that the wire maybe straightened in two planes at right angles to each other, as is thecase with any of the modern straightening devices. Of course three oreven four of these sets might be employed if desired, and my inventionhas reference not to the employment of two, three or four separate setsof straightening rolls, but it only relates to the manner ofconstructing and adjusting a single set of these rolls, the use of morethan one set being a matter of mere duplication.

1 is any suitable base and 2 an upright rising therefrom. 3 is a tableextending from said upright, and l are idle rolls journaled'in ahorizontal position upon said table.

5 are jaws which have lateral extensions 6 whose outer surfaces arecircular, the opposite sides of the extensions having semi circulargrooves 7 therein. The curved surfaces of these extensions arecomplementary portions of a circle, and said extensions are inserteddownwardly through a circular opening in the table 3, and are secured inthis position by means of a bolt 8 passed between said extensions andsnugly fitting within the grooves '7, the rear extremity of the boltpassing through a washer 9 and having on its extremity a nut 10 wherebythe head ll of the bolt is drawn against the jaws so as to prevent anydisplacement of the latter. It will thus be clearly seen that these jawsare in effect pivoted upon the table, the particular style of pivotingshown and described being merely a preferred arrangement in order toinsure free movement of the jaws as well as considerable strength.

12 are rolls journaled in a horizontal plane upon the jaws, the positionof these rolls being such that they are directly opposite to the spacesbetween the rolls a as is usual in devices of this description.

The outer ends of the jaws have formed thereon interiorly threaded nuts13 through which are passed threaded bolts 14: provided at their innerends with heads 15, said bolts being held in any desired adjustment bymeans of lock nuts 16.

Plvoted within the table 3 is a bar 17 upon whose upper end is formed adouble cam 18 which latter in normal position extends between the boltheads 15. 19 is a handle lever secured to the other end of the bar 17whereby the latter may be rocked back and forth. When the parts are inthe position as shown at Fig. l'the rolls 12 will be withdrawn from therolls at in order to permit of the introduction of the wire, and theheads 15 will therefore be opposite the sides of the cam 18 at itsnarrowest diameter, but when the handle 19 is operated to turn the cam,the latter will act against the heads 15'and will thereby throw the jaws5 inward so as to carry the rolls 12 against the wire and into operativeposition for straightening the latter in conjunction with the oppositerolls 4.

In case that it becomes desirable to throw the rolls 12 in operativeposition nearer to or farther away from the rolls 4, this is etfected byadjusting the bolts 14 so that the throw of the jaws by the cam 18 ischanged. For instance if it is desired to carry the rolls 12 closer tothe rolls 4 the bolts let are driven farther within the nuts 13, so thatwhen the cam is operated the jaws will be thrown closer to the rolls 4,and the reverse follows if the bolts 14 are turned in the otherdirection. This adjustment of the rolls 12 is of great advantage, foreven when the device is in operation and it is desired to shift theirposition,

this may be accomplished, without stopping the feed of the wire, bysimply manipulating the bolts 14, and the workman thus is enabled toinspect the wire and to carefully note the changes produced in itsappearance. In other words, it is a great advantage to be able tocorrect the operation of the straightener during the act ofstraightening, for then the adjustments may be made gradually and untila good result is obtained. As before stated I have shown these jawspivoted in a peculiar manner, and while I prefer this construction, I donot wish to limit myself to any particular way of pivoting these jaws,since it will be obvious to any skilled mechanic that, as far astheoperation of thesejaws is concerned, it is only necessary that theyshall be pivoted so as to be capable of swinging and thereby carryingthe rolls 12 into or out of operative position.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a wire straightener, the combination of a series of idle rollsstationary except as to rotary movement, with a pair of pivoted jaws,

rolls carried by said jaws and opposite to the spaces between the firstmentioned rolls, a rotatory cam bar between said jaws, and adj ustableabutments carried by said jaws on opposite sides of said cam bar,substantially as set forth.

2. In a wire straightener, the combination of a series of idle rollsstationary except as to rotary movement, the pivoted jaws carrying rollsopposite to the spaces between the first mentioned rolls and having attheir free ends nuts, the rotatory cam carrying bar, and the threadedbolts passed through said nuts and provided with heads which extend onopposite sides of said cam, substantially as set forth.

3. In a wire straightener, the combination of the table, a series ofidle rolls journaled on said table, the jaws having at their outer endsnuts and at their inner ends extensions whose outer surfaces arecircular and whose inner faces are provided with circular grooves saidextensions inserted through a circular opening in the table, rollscarried by said jaws, the headed bolt within said grooves, means as awasher and nut for securing said bolt in position, the rotatory barjournaled within the table and carrying a cam, the threaded bolts passedthrough the nuts on the jaws and provided with heads at their inner endswhich extend on opposite sides of said cam, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES F. SMITH.

Witnesses:

F. W. SMITH, Jr., M. T. LONGDEN.

